Adjustable arm rest



FIG. 1 is a top, left front perspective view of an adjustable arm rest showing my new design;

FIG. 2 is a bottom, rear and left side perspective view thereof;

FIG. 3 is a top and right side perspective view thereof illustrating the alternate embodiment of FIGS. 1 and 2 in its operable position, the broken lines showing of the arm of an arm chair is for illustrative purposes only and forms no part of the claimed design;

FIG. 4 is a front elevational view of the alternate embodiment of FIGS. 1 and 2 illustrating the device in its operable position, the broken lines showing of the arm of an arm chair (in cross-section) is for illustrative purposes only and forms no part of the claimed design;

FIG. 5 is a front elevational view of the alternate embodiment of FIGS. 1 and 2 illustrating the device as it is folded to its operable position, the broken lines showing of the arm of an arm chair (in cross-section) is for illustrative purposes only and forms no part of the claimed design;

FIG. 6 is a top, left front perspective view of a second embodiment of my new design; and,

FIG. 7 is a bottom, left rear perspective view of FIG. 6. 

The ornamental design for an adjustable arm rest, as shown and described. 